Question

решите уравнение: sin3x*tgx=0

Answer 1

$sin3x*tgx=0$

$sin3x=0$ 

$3x=pi n, n=0,1,2,3...$ 

$x = frac{pi}{3}n, n=0,1,2,3...$ 

$tgx=0$ 

$x=pi k, k=0,1,2,3...$ 

Ответ: $x=pi k/3, k=0,1,2,3,4...$ 

$x=pi n, n=0,1,2,3...$